They have no idea what a tax revenue windfall they could realize for the Shining City on the Potomac if they could just let their people go into space on development and commerce.
Screw that, lie to them and when the capability is exploited and the colonists and industries established, declare independence on the original model with some minor changes to the BOR to make it idiot and criminal proof (i.e. "construing the 2nd to mean anything other than an individual right" gets you jettisoned out an airlock or thrown into the organics vats. Same for proposing an income tax, central bank, etc...)
Write a sci-fi story about that.